post https://rz3.aeb.de/demo1cai/rest/SyncBFBean/synchronizeEvents
Poll the next events for the client system.
This method requires the client system to persist the synchronisation state itself and passing a proper value for {@link SyncEventsRequestDTO#syncId}
See {@link #getNotAcknowledgedEvents(SyncEventsRequestDTO)} for a version of the method, were the syncronisation state is kept within the Engine.